RT Journal Article SR Electronic T1 Does Growth Hormone Therapy in Conjunction With Resistance Exercise Increase Muscle Force Production and Muscle Mass in Men and Women Aged 60 Years or Older? JF Physical Therapy JO Phys Ther FD American Physical Therapy Association SP 76 OP 82 VO 79 IS 1 A1 Zachwieja, Jeffrey J A1 Yarasheski, Kevin E YR 1999 UL http://jcore-reference.highwire.org/content/79/1/76.abstract AB